Oriel Windfarm Ltd Oriel Wind Farm Foreshore Licence Application for Marine Survey Issue 1 | 12 November 2018 This report takes into account the particular instructions and requirements of our client. It is not intended for and should not be relied upon by any third party and no responsibility is undertaken to any third party. Job number Ove Arup & Partners Ireland Ltd Arup 50 Ringsend Road Dublin 4 D04 T6X0 Ireland www.arup.com
69
Embed
Oriel Windfarm Ltd...Oriel Windfarm Ltd Oriel Wind Farm Foreshore Licence Application for Marine Survey Issue 1 | 12 November 2018 This report takes into account the particular instructions
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
From: Marie Murphy [mailto:[email protected]] Sent: 21 September 2018 12:20 To: Manager Dau Cc: Garrett Connell; Michael Daly Subject: Oriel Windfarm, Co. Louth
To whom it may concern
We act on behalf of Oriel Windfarm Limited (Oriel, an Irish renewable energy company
which has been developing the proposed Oriel offshore wind farm located in the North West
Irish Sea, 22km off the coast of Dundalk, County Louth. Oriel was granted a Foreshore
Licence in October 2005 from the then DCMNR, giving permission to carry out a technical
work plan to investigate the suitability of an area to the East of Dundalk Bay for the
construction of an offshore wind farm. This included geotechnical site investigation, an
engineering assessment and the completion of an Environmental Impact Statement (EIS), and
Natura Impact Statement (NIS). Following the completion of this work Oriel applied for a
Foreshore Lease to construct an offshore generating station in February 2007. In Autumn
2008 the MLVC made a recommendation to grant a lease. Due to government policy
changes the project was delayed however it is now coming back on stream.
We are conscious of the time lapse since the previous investigations and so wish
to undertake a new set of surveys which will comprise of geophysical, environmental,
metocean and geotechnical marine surveys of the marine cable route corridor and the
windfarm site.
The surveys are intended to aid the design by improving the geological and geotechnical
understanding of the site. The data would also be used to inform environmental appraisals by
providing information on the current situation and allowing impacts to be predicted and
subsequently, appropriate mitigation to be developed.
We will be submitting an application fora foreshore licence for the SI, including an AA
Screening shortly.
We are seeking input or comment from the DAU in respect of the proposals as outlined. In
particular, if DAU has any specific requirements in respect of the initial surveys, which it is
hoped to undertake early in 2019, then we would be grateful if a response could be provided
as soon as possible.
Should you have any queries, please do not hesitate to contact me.
Our Ref: G Pre00233/2018 (Please quote in all related correspondence) A Chara On behalf of the Department of Culture, Heritage and the Gaeltacht, I acknowledge receipt of your recent consultation. In the event of observations, you will receive a co-ordinated heritage-related response by email from Development Applications Unit (DAU) on behalf of the Department. The normal target turnaround for pre-planning and other general consultations is six weeks from date of receipt. In relation to general consultations from public bodies under the European Communities (Environmental Assessment of Certain Plans and Programmes) Regulations 2004 to 2011, the Department endeavours to meet deadline dates, where requested. If you have not heard from DAU and wish to receive an update, please telephone the direct line number below or email [email protected] . Le meas Sinéad O’ Brien
—
Sinéad O’ Brien
Executive Officer
—
An Roinn Cultúir, Oidhreachta agus Gaeltachta
Department of Culture, Heritage and the Gaeltacht
Aonad na nIarratas ar Fhorbairt Development Applications Unit
FUGRO DIGITAL SEISMIC CONE SYSTEMThe seismic cone penetration test (SCPT) provides in-situ seismic wave velocities as well as piezo-cone penetration test (PCPT) parameters.
Seismic wave velocities give high-value
information about in-situ ground
characteristics, such as low-strain shear
modulus for use in earthquake design
studies and analysis of dynamically loaded
foundations.
EQUIPMENT AND SOFTWAREKey components of the Digital Seismic
TEST PROCEDUREThe SCPT procedure includes a repeated
sequence of the following steps:
■■ Interrupting the standard CPT
procedure at the desired seismic
test level
■■ Activating the seismic source and
recording of the seismic receiver
signals, if necessary with re-activating
cycles to permit stacking
■■ Optional: data validation by displaying
the preliminary depth profile within the
data acquisition software
■■ Resuming the standard CPT
procedure, repeating the test sequence
as required.
TEST RESULTSPrimary test results consist of seismic wave
traces for, usually multiple, test depths. The
use of data filtering techniques is common.
Data processing includes calculation of
seismic wave velocities, with additional
options such as:
■■ Taking time lag as the time shift of the
maximum cross-correlation of
the signals
■■ Travel path correction based on Snell’s
law of refraction for ground layers
showing abrupt changes in density
or stiffness
■■ Integrated presentation of seismic
parameters and CPT data.
Test Results.
2
Fugro Tool Data Sheet
1005 Four Arm Calliper Instrument The 4 arm calliper has two pairs of arms which give two orthogonal hole diameters plus an average borehole diameter. This tools works in most borehole conditions and will function above and below the water table. General Data Supply Voltage 80-150VDC Supply Current 30-60mA Current with motor 150-200mA Type of Top-Sub ANTARES 14-pin Length 2.177m Diameter 52mm Weight 15kg Pressure Rating 40MPa Max Temp 70°C Sensor Data Calliper 1-3 Cal13 in mm Calliper 2-4 Cal24 in mm Cable Head Voltage CHV in V Electronics Temp Temp in °C Sensor Position Calliper 1-3 and 2-4 2.10m below top of top sub Measuring Range Calliper 1-3 and 2-4 50 to 800mm +/- 2% Rec. Min. Bh. Di 75mm Rec. Max. Bh. Di 800mm
Fugro Tool Data Sheet
Application The calliper is used to measure the diameter of the borehole. It can be used in both open and cased boreholes. This tool is usually deployed before any other tool to check the integrity and condition of the borehole. The 4 arm calliper has 2 pairs of interdependent arms which measure the X and Y diameter of the borehole. This gives a measure of the ovality of the borehole which can indicate differential squeezing of the formation. The tool is normally deployed before any other tools to check the integrity and condition of the borehole. The calliper curves indicate the location of different casing types and breakages, fractures and fissures, and borehole caving and squeezing. It can also be used for the identification of soft and hard formations which can be correlated with other measurements to further refine lithological interpretations. As borehole condition can affect the quality of many other geophysical readings the calliper log is very important for quality control of other survey data and is required for environmental corrections to other measurements.. The curves can also be used to calculate borehole fluid, cement or backfill volumes. Example Log
Offsh
ore G
eotech
nical
High Performance Corer - HPCTM
Fugro Alluvial has developed a High Performance CorerTM to cope with the demand for longer sample
recovery in dense granular and stiff cohesive materials.
Application
The HPCTM utilises innovative electric motor technology and
sample barrel design. The new motor technology allows an
optimisation of excitation frequency and vibration amplitude
to suit any particular soil conditions. At it’s most powerful
settings the HPCTM can apply more than twice the power and
five times the vibration amplitude of a standard vibrocorer.
All of this translates into much longer sample recovery.
The HPCTM may also be used with a newly developed low area
ratio sample barrel which minimises the sampling disturbance in
clay soils.
Optional Features
• Maximum working water depths of 350 m
• Umbilical spooler for deep water projects
• Easily transported by road, sea or air
• Real time penetration and base tilt registration
Applications
• Pre-dredge surveys
• Cable Route surveys
• Environmental investigations
• Mineral/Aggregate prospecting
• Inshore civil engineering site investigations
• Offshore oil and gas pipeline geotechnical investigations
This document includes technical information. Reasonable effort has been made to verify its
correctness at the time of compilation but details may change with the passage of time and
without prior notice. Fugro does not accept any liability for loss or damage of any kind arising
from use of the information.
The HPCTM penetration and soils data may be used in combination
with CPT data to further refine stratigraphic and soils parameter
logging along pipelines or in discrete location seabed soil
engineering projects.
Example of HPC™ data set:
FUGROEXCALIBURExcalibur is the largest in the Fugro fleet of jack-up barges, in class with Germanischer Lloyd. This 8-legged barge is capable of working in water depths up to 40 m and has been used extensively for installing foundations for offshore wind farm projects and also can be equipped with an integral foundation drilling unit.
The jack-up provides a very stable working
platform with accommodation for up to 40
personnel.
Facilities include:
� 20 two-man accommodation rooms
complete with showers and toilets
� Galley
� Mess room
� Recreation room
� Laundry room
� Office
� Workshop
� Store rooms
EQUIPMENT FLYER
It comes fully equipped with:
� Navigation and communication
systems
� GMDSS radio room
� VHF
� INMARSAT
� NAVTEX
WWW.FUGRO.COM 1
EQUIPMENT FLYER
Classification society: DNVGLNotation: Non propelled self-elevating unitFull refurbishment: 2018Year of last class survey: 2018 (renewal every 5 years)Flag: The Republic of VanuataJacking system: Pneumatic/hydraulicPower pack configuration: Diesel hydraulicMax. separation: 45 m (length of leg below hull)Draft: 2.73 mMax. payload: 1031 tMax. deck load: 785 t @ 10 t/m2Gross tonnage: 2390Net tonnage: 717Deck construction: Steel monohull
Length: 60 mBreadth: 32 mMoulded depth: 4.24 mNumber of legs: 8Max. operating water depth: 37.1 m (dependant on environmental conditions)Main crane: HuismanMax. boom length: 62.4 mMax. platform lift: 230 t @ 17.5 mMarine lift (min. radius): 190 t @ 9 mAuxiliary crane: Hydralift (5 t)Max. leg length: 55 mLeg dia.: 1.8 mNumber accommodation: 40
FUGROFUGRO 1200The Fugro 1200 is a sturdy jack-up platform for support ofgeotechnical investigation, foundation piling and general heavy liftmarine construction operations. The fast jacking speeds and the wide envelope of the pile gate complete a package which, for the class of vessel, is hard to beat.
MKIV – CONTINUOUS DRIVEThe Fugro SEACALF® MkIV is a novel seabed deployed Cone Penetration Test (CPT) system, employing a coiled push rod and a compact continuous thrust machine.
COMPACT AND EFFICIENT CPT SYSTEMBy using a novel combination of
The Jumbo Piston Corer is a large trigger release corer used to
retrieve large diameter and long samples in very soft to soft soils. It
can sample in water depths to 3,000 m and the maximum sample
length is 20 m.
It can be deployed either from the side or the back of the vessel
with an A-frame.
High Performance Corer - HPC™ (Vibrocorer)¹
The HPC™ is a sampling device with an electric motor that creates
vibrations which drives the core barrel into the soil. The working
water depth is 450 m and it can retrieve 6 m samples in stiff,
granular soils.
Box Corer¹
The Seabed Box Corer is a bulk, sampling device for sampling
the seabed top soil. These samples of the very soft, cohesive top
layer are very suitable for sub-sampling, laboratory testing and mini
T-bar testing. A bar with weight blocks pushes a square box into
the ground. When the box corer is lifted, a lid closes below the
sample box.
Grab Sampler
The grab sampler is also a bulk sampler which is triggered when
touching the seabed. Grab samples are disturbed and are used
for examining mineral deposits, aggregate prospecting and
environmental and pre-dredging research. When the sampler is
lifted, the scoops close around the soil.
¹:For detailed information of this seabed system please
consult the specific brochure.
Max. water depth
Max.penetration
depth
Mass (underwater)
Max. thrust (is
different for each
probe)
Soil type
Probes applicable
Sample tubes
SEACALF®
2,500 m
40 m
13 tons/26 tons
50 kN/100 kN/200 kN
Soft/stiff/dense soils
10 cm2 Digital piezo-
cone
15 cm2 Digital piezo-
cone
In-Situ Vane (20 m
penetration
T-bar
Ball probe
Digital seismic Cone
Thermal conductivity
probe
Electricalconductivity
probe
FUGRO SMARTPIPE®
2,500 m
0,5 m
2.5 tons
Vertical: 25 kN, Axial:10 kN, Lateral: 10 kN
Very soft/soft soils
Instrumented pipe
segment
Mini T-bar
SEAROBIN®
2,500 m
2 m
2.3 tons
25 kN
Soft/stiff soils
10 cm2 Digital piezo-
cone
3” Thin walled tube,
± 100 cm, max
60 kN
3” Thin walled tube
with core catcher, ±
100 cm, max 60 kN
SMARTSURF
2,500 m
3 m PCPT, In-Situ Vane
and T-Bar, 2 m piston
sampler, 1 m mini T-bar
2.5 tons
25 kN
Very soft/soft soils
10 cm2 Digital piezo-
cone
15 cm2 Digital piezo-
cone
In-Situ Vane
T-bar
Mini T-bar
100 mm PVC liner in
approx. 4” sample tube
Variable Weight Gravity
Corer
3,000 m
2,4 and 6 m
0.5 - 7.5 tons
Soft/stiff soils
90 mm PVC liner in steel
barrel witch core catcher,
core diameter 86.4 mm
Kulemberg Piston
Corer
3,000 m
2,4 and 6 m
0.5 - 7.5 tons
Soft/stiff soils
90 mm PVC liner
in steel barrel witch
core catcher, core
diameter 86.4 mm
Grab Sampler
3,000 m
0.5 m
0.5 tons
Very soft/soft
soils
Grab sampler
capacity: 30 liter
THE SEABED UNITThe penetration force for this evolution of theSEACALF is provided by the Fugro BLOCK-DRIVE system. The rods are driven from apower pack mounted on the seabed frame. Theframe is 3.4 m high and the base is 3 m x 3 m.It weighs approximately 25 tonnes in air. Forextra reaction this can be increased by theaddition of ballast blocks. The unit can be setup to provide 100 kN (10 tonnes) or 200 kN (20tonnes) of penetration thrust, by using one ortwo block-drives systems.
PERFORMING A TESTAn electronic cone penetrometer, connected toa string of rods, is pushed into the seabed at acontrolled rate. As it penetrates the variationsin cone resistance, sleeve friction and porepressure (or other parameters) are continuouslyrecorded. Signals from the sensors passthrough a control and data transmission moduleon the seabed frame are then transmitted, indigital form, to the surface via a combinedpower and signal umbilical. The results aredisplayed graphically on the monitor andsimultaneously recorded. The operator main-
tains complete control of the seabed unitthrough the computer.
Block-Drive Seacalf CPT
The BLOCK-DRIVE SEACALF is a further development of the SEACALF system, which has beenin use for offshore geotechnical investigations since 1972. It is an underwater rig for performingcontinuous static cone penetration tests (CPT) from the seabed in water depths ranging from 10m to 500 m. Tens of thousands of tests have been performed with the SEACALF to investigatesites for wind-turbines, jackup rigs, production platforms, pipelines and other offshore structures.
BlockDrive.qxd:3D_Mapping_Pro2.qxd 13-10-2008 11:01 Pagina 1
TEST PENETRATIONThe amount of penetration that can be achievedat a specific site depends on upon the soil con-ditions and the available reaction force. In 200kN mode with full ballast, penetration typicallyranges from about 20 m in dense sands andhard gravely clays to between 30 and 60 m insofter ‘normally consolidated’ clays. Any lengthtest rod can be built into the rig prior to deploy-ment. The rod is kept vertical by means of ten-sioned wire connected to the rigging system.
INSTRUMENTATIONStandard instrumentation incorporated on theseabed frame includes a dual axis inclinometerand a water pressure transducer. A CCTV cam-era can be attached to the frame and the sig-nals transmitted via the main umbilical. Thesystem can also be adapted to perform vaneshear tests, plate load tests or push otherinstrumented probes into the seabed including:
• seismic cone • thermal and electrical conductivity cones • full displacement pressuremeter • dilatometer • nuclear density probe • model caisson structures
DEPLOYMENT VESSELSThe BLOCK-DRIVE SEACALF can be used fromany of the Fugro geotechnical drilling ships orcan be modified for deployment from other suit-able vessels. It can be deployed on twin linethrough a moonpool or via crane or A-Frameover the side of the vessel. The system isinstalled on our own specialised geotechnicalinvestigation vessel – the Fugro Commander.
EQUIPMENT SPECIFICATIONThrust capacity Weight in air Height Base size Power supply
Fugro Alluvial Offshore Limited is a member of the Fugro Group, with offices throughout the world
Oktober 2008
200 kN250 kN4.9 m3m x 3m20-40 kVA
BlockDrive.qxd:3D_Mapping_Pro2.qxd 13-10-2008 11:01 Pagina 2
TM
sample recovery in dense granular and stiff cohesive materials.
High Performance Corer - HPCTM
The HPCTM utilises innovative electric motortechnology and sample barrel design. The newmotor technology allows an optimisation ofexcitation frequency and vibration amplitude tosuit any particular soil conditions. At it’s mostpowerful settings the HPCTM can apply morethan twice the power and five times the vibra-tion amplitude of a standard vibrocorer. All ofthis translates into much longer sample recov-ery.
The HPCTM may also be used with a newlydeveloped low area ratio sample barrel whichminimises the sampling disturbance in claysoils.
• Umbilical spooler for deep water projects• Easily transported by road, sea or air• Real time penetration and base tilt registration
Applications• Pre-dredge surveys• Environmental investigations• Mineral/Aggregate prospecting• Inshore civil engineering site investigations• Offshore oil and gas pipeline geotechnical
investigations
Specification• 415V, minimum 45 kVA power supply• 3m to 6m core barrel (8m optional)• Mild steel barrels 101.6 mm o.d. 93.6 mm i.d.• PVC liners 88.9 mm o.d. 84.14 mm i.d.
Optional sample sizes available
High Performance Corer - HPCTM
Dimensions
8.1 2.8 x 2.4 3160
CORE BARREL(m)
6.0
q q g
Optional Features
Fugro Alluvial has developed a High Performance Corer to cope with the demand for longer
HEIGHT(m) BASE(m) WEIGHT(kg)• Maximum working water depths of 350 m
The specification of the equipment in this data sheet may be subject to modifications without prior notice
The HPCTM penetration and soils data may be used in combination with CPT data to further refinestratigraphic and soils parameter logging along pipelines or in discrete location seabed soilengineering projects.
Example of HPC™ data set:
q q g
Offsh
ore G
eotech
nical
Piezo-cone penetrometer
The Piezo-cone penetrometer: for in-situ geotechnical testing
Introduction
For in-situ geotechnical characterisation of ground con-
ditions, Fugro uses the piezo-cone penetrometer (piezo-
cone) for performing a piezo-cone penetration test (PCPT
or CPTU). Fugro has developed a range of state of the art,
in-house designed and built piezo-cones.
Application
A PCPT involves the measurement of the resistance of the soil to
steady and continuous penetration of the piezo-cone equipped with
internal sensors. The measurements comprise penetration depth,
cone resistance, sleeve friction, pore pressure and inclination from
vertical.
The piezo-cone measures the transient pore pressure generated
during penetration, as well as the hydrostatic pore pressure.
The transient pore pressures can be significant for some low-
permeability soils. Measurement of the dissipation of the transient
pore pressure is feasible during a penetration interruption. The
dissipation measurements permit the estimation of the in-situ
coefficient of consolidation.
These measurements permit high quality interpretation of the
ground conditions, provide a stratigraphic profile and thus an
accurate knowledge of the soil layering which is essential to a
Compliancy PCPT apparatus and procedures adopted by Fugro are in general accordance with the Inter-national Reference Test Procedure published by the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE, 1999). BS 5930 (BSI, 1999) and NORSOK Standard G-CR-001 (NORSOK, 2004) refer to SSMGE (1999). General agreement also applies to stan-dards published by ASTM International (ASTM D5778-07), ISO/DIS 22476-1 (ISO, 2005) and Eurocode 7 (CEN, 2007).
G-882 MARINE MAGNETOMETER
O CESIUM VAPOR HIGH PERFORMANCE – Highest detection rangeand probability of detecting all sized ferrous targets
O NEW STREAMLINED DESIGN FOR TOW SAFETY – Lowprobability of fouling in lines or rocks
O NEW QUICK CONVERSION FROM NOSE TOW TO CG TOW –Simply remove an aluminum locking pin, move tow point andreinsert. New built in easy carry handle!
O NEW INTERNAL CM-221 COUNTER MODULE – Provides FlashMemory for storage of default parameters set by user
O NEW ECHOSOUNDER / ALTIMETER OPTION
O NEW DEPTH RATING – 4,000 psi !
O HIGHEST SENSITIVITY IN THE INDUSTRY – 0.004 nT/√Hz RMSwith the internal CM-221 Mini-Counter
O EASY PORTABILITY & HANDLING – no winch required, singleman operation, only 44 lbs with 200 ft cable (without weights)
O COMBINE TWO SYSTEMS FOR INCREASED COVERAGE –Internal CM-221 Mini-Counter provides multi-sensor dataconcatenation allowing side by side coverage which maximizesdetection of small targets and reduces noise
Very high resolution Cesium Vapor performance is nowavailable in a low cost, small size system forprofessional surveys in shallow or deep water. Highsensitivity and sample rates are maintained for allapplications. The well proven Cesium sensor iscombined with a unique and new CM-221 Larmorcounter and ruggedly packaged for small or large boatoperation. Use your computer and standard printer withour MagLogLite™ software to log, display and print GPSposition and magnetic field data. The G–882 is thelowest priced high performance full range marinemagnetometer system ever offered.
The G-882 offers flexibil ity for operation from small boat,shallow water surveys as well as deep tow applications(4,000 psi rating, telemetry over steel coax available to10Km). The G-882 also directly interfaces to all majorSide Scan manufacturers for tandem tow configurations.Being small and lightweight (44 lbs net, without weights)it is easily deployed and operated by one person. Butadd several streamlined weight collars and the systemcan quickly weigh more than 100 lbs. for deep towapplications. Power may be supplied from a 24 to 30VDC battery power or the included 110/220 VAC powersupply. The tow cable employs high strength Kevlar
strain member with astandard length of 200 ft (61m) and optional cable lengthup to 500m with no telemetryrequired.A rugged fiber-woundfiberglass housing isdesigned for operation is allparts of the world allowingsensor rotation for work in equatorial regions. Theshipboard end of the tow cable is attached to an includedjunction box or optional on-board cable for quick andsimple hookup to power and output of data into anyWindows 98, ME, NT, 2000 or XP computer equippedwith RS-232 serial ports.
The G-882 Cesium magnetometer provides the sameoperating sensitivity and sample rates as the larger deeptow model G-880. MagLogLite™ Logging Software isoffered with each magnetometer and allows recordingand display of data and position with Automatic AnomalyDetection and automatic anomaly printing on Windows™printer! Additional options include: MagMap2000 plottingand contouring software and post acquisition processingsoftware MagPick™ (free from our website.)
G-882 with Weight CollarDepth Option & Altimeter
The G-882 system is particularly well suited for thedetection and mapping of all sizes of ferrous objects.This includes anchors, chains, cables, pipelines, ballaststone and other scattered shipwreck debris, munitions ofall sizes (UXO), aircraft, engines and any other objectwith magnetic expression. Objects as small as a 5 inchscrewdriver are readily detected provided that the sensoris close to the seafloor and within practical detectionrange. (Refer to table at right).
The design of this high sensitivity G-882 marine unit isdirected toward the largest number of user needs. It isintended to meet all marine requirements such asshallow survey, deep tow through long cables,integration with Side Scan Sonar systems andmonitoring of fish depth and altitude.
Typical Detection Range For Common Objects
Ship 1000 tons 0.5 to 1 nT at 800 ft (244 m)Anchor 20 tons 0.8 to 1.25 nT at 400 ft (120 m)Automobile 1 to 2 nT at 100 ft (30 m)Light Aircraft 0.5 to 2 nT at 40 ft (12 m)Pipeline (12 inch) 1 to 2 nT at 200 ft (60 m)Pipeline (6 inch) 1 to 2 nT at 100 ft (30 m )100 KG of iron 1 to 2 nT at 50 ft (15 m)100 lbs of iron 0.5 to 1 nT at 30 ft (9 m)10 lbs of iron 0.5 to 1 nT at 20 ft (6 m)1 lb of iron 0.5 to 1 nT at 10 ft (3 m)Screwdriver 5 inch 0.5 to 2 nT at 12 ft (4 m)1000 lb bomb 1 to 5 nT at 100 ft (30 m)500 lb bomb 0.5 to 5 nT at 50 ft (16 m )Grenade 0.5 to 2 nT at 10 ft (3 m )20 mm shell 0.5 to 2 nT at 5 ft (1.8 m)
MODEL G-882 CESIUM MARINE MAGNETOMETER SYSTEM SPECIFICATIONSOPERATING PRINCIPLE: Self-oscillating split-beam Cesium Vapor (non-radioactive)
OPERATING RANGE: 20,000 to 100,000 nT
OPERATING ZONES: The earth’s field vector should be at an angle greater than 6from the sensor’sequator and greater than 6away from the sensor’s long axis. Automatichemisphere switching.
CM-221 COUNTER SENSITIVITY:<0.004 nT/ Hz rms. Up to 20 samples per second
HEADING ERROR: 1 nT (over entire 360spin )
ABSOLUTE ACCURACY: <2 nT throughout range
OUTPUT: RS-232 at 1,200 to 19,200 Baud
MECHANICAL:
Sensor Fish: Body 2.75 in. (7 cm) dia., 4.5 ft (1.37 m) long with fin assembly (11 in. cross width),40 lbs. (18 kg) Includes Sensor and Electronics and 1 main weight. Additional collarweights are 14lbs (6.4kg) each, total of 5 capable
Tow Cable: Kevlar Reinforced multiconductor tow cable. Breaking strength 3,600 lbs, 0.48 inOD, 200 ft maximum. Weighs 17 lbs (7.7 kg) with terminations.
OPERATING TEMPERATURE: -30F to +122F (-35C to +50C)
STORAGE TEMPERATURE: -48F to +158F (-45C to +70C)
ALTITUDE: Up to 30,000 ft (9,000 m)
WATER TIGHT: O-Ring sealed for up to 4,000 psi (9000 ft or 2750 m) depth operation
POWER: 24 to 32 VDC, 0.75 amp at turn-on and 0.5 amp thereafter
ACCESSORIES:
Standard: View201 Utility Software operation manual and ship kit
Optional: Telemetry to 10Km coax, gradiometer (longitudinal or transverse), reusable shippingcase
MagLog Lite™ Software: Logs, displays and prints Mag and GPS data at 10 Hz sample rate. Automaticanomaly detection and single sheet Windows printer support
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE 12/06
GEOMETRICS INC. 2190 Fortune Drive, San Jose, California 95131, USATel: 408-954-0522 – Fax: 408-954-0902 – Email: [email protected]
GEOMETRICS EUROPE 20 Eden Way, Pages Industrial Park, Leighton Buzzard LU7 4TZ, UKTel: 44-1525-383438 – Fax: 44-1525-382200 – Email: [email protected]
GEOMETRICS CHINA Laurel Technologies, Ste 1807-1810, Kun Tai Int’l Mansion, #12B, Chaowai St. , Beijing 100020, ChinaTel: 86-10-5879-0099 – Fax: 86-10-5879-0989 – Email: [email protected]
Multibeam echo sounderHigh resolution seabed mapping system
EM 710
(855-164939 / Rev.C / June 2006)
(EM 3000 data from Storegga Slide off the Norwegian coast. Courtesy of Norsk Hydro)
System description
System overviewThe EM 710 multibeam echo sounder is a high to very high resolution seabed mapping system capable of meeting all relevant survey standards. The system configuration can be tailored to the user requirements, allowing for choice of beam widths as well as trans-mission modes.
The minimum acquisition depth is from less than 3 m below its transducers, and the maximum acqui-sition depth is approximately 2000 m, somewhat dependant upon array size. Across track coverage (swath width) is up to 5.5 times water depth, to a maximum of more than 2000 m.
Echo sounder modelsThere are three basic versions of the EM 710 system, with different range performances:• EM 710 - Full performance version.• EM 710S - CW pulse forms only.• EM 710RD - Short CW pulse only.
Choice of beamwidthsThe along track beamwidth depends upon the chosen transducer configuration with 0.5, 1 and 2º available as standard. The receive beam width is either 1 or 2º depending on the chosen receive transducer.
Innovative acoustic principlesThe EM 710 operates at sonar frequencies in the 70 to 100 kHz range. The transmit fan is divided into three sectors to maximize range capability, but also to suppress interference from multiples of strong bottom echoes. The sectors are transmitted sequen-tially within each ping, and uses distinct frequencies or waveforms. EM 710S and EM 710RD both use CW pulses of different lengths. The full performance version, EM 710, supports even longer, compressible waveforms (FM sweep).
Fully stabilized and focused beamsThe system applies beam focusing to both transmit and receive beams in order to obtain the maximum resolution also inside the acoustic near-field. During transmission, focusing is applied individually to each transmit sector with a focus point on the range defined by the previous ping, to retain the angular resolution in the near field. Dynamic focusing is applied to all receive beams. The transmit beams are electronically stabilized for roll, pitch and yaw, while the receive beams are stabilized for roll movements.
Controlled, dense and accurate sound-ingsThe beam spacing may be set to be either equiangular or equidistant. The maximum swath coverage may be limited by the operator either in angle or in swath width without reducing the number of beams. A combination of phase and amplitude bottom detection algorithm is used, in order to provide soundings with the best possible accuracy.
The number of beams varies with the beamwidth. The system generates 256 beams/400 soundings per ping for 0.5 and 1º systems, and 128beams/200 soundings for a 2º system.
TransducersThe active elements of the EM 710 transducers are based upon composite ceramics, a design which has several advantages, in particular increased bandwidth and tighter performance tolerances. The transducers are fully watertight units which will give many years of trouble-free operation.
The 1x2º and 2x2º versions can be mounted on a pole for portable deployment, while the larger trans-ducer versions are for permanent mounting; flush with the hull, in a blister or in a gondola construction.
Transceiver UnitThe EM 710 electronics system is a true wideband design. The transmitter circuits are fully programma-ble to support any frequency or pulse form. The use of FM sweep as a pulse form allows for more energy per pulse and thus increased range performance, with-out any sacrifice of range resolution.
The non-saturating and low noise receivers and A/D converters are of floating point type, resulting in a dynamic range of more than 140 dB. The conven-tional TVG compensation is no longer needed.
Filters, correlators and beamformers are fully dig-ital implementations, and the beam forming method is by time delays, to allow for the wide frequency band of the system.
Operator StationThe Operator Station is the HWS high performance dual-processor PC workstation is used as. It is dual bootable to either Linux® or Windows XP®.
The HWS is normally supplied with a 19” industri-alized LCD monitor with a resolution of 1280x1024 pixels. Support for a second monitor is included. A spill-proof US keyboard and a standard optical mouse is normally supplied.
Serial interfaces:Positioning systemsAttitude (roll, pitch and heave)HeadingClock
Supply voltage:115 or 230 Vac 50/60 Hz
Trigger input/outputClock synchronization
Special interfaces:
Transmit transducer arrayReceive transducer array
5, 10 or 20
Remote Control(Optional)
Typical system configuration with desktop Operator Station, Transceiver Unit and transducer arrays
Advanced functions
• Integrated seabed acoustical imaging capability is included as standard. Software to use this data for automatic seabed classifi-cation is available.
• A real time display window for water column backscatter is avail-able. Logging of water column data and of raw stave data (before beamforming) is a system option.
• A high density beam processing mode provides up to 400 or 200 soundings per swath. In order to make the soundings independ-ent, a limited range window is set inside each beam for each sound-ing. In practice this is equivalent to synthetically sharpening the beam width.
• With a 0.5º transmit and 1º receive transducer the system will be able to generate two separate alongtrack swaths per ping. The system produces up to 800 sound-ings per ping in this mode.
• The Operator Station includes the necessary operator controls for setting up and running the system, data logging and system testing.
• The Seafloor Information System (SIS) includes an extensive set of graphical displays for data quality control, as well as system calibration and other tools which are required. SIS supports on-line real-time data cleaning to improve the overall survey effi-ciency.
• Post-processing software for the EM 710 is available from both Kongsberg Maritime and third-party suppliers.
The image of a sunken wreck at 20 m depth.
Technical specifications
Kongsberg Maritime is engaged in continuous development of its products, and reserves the right to alter the specifi-
Wind Profiler - ZephIR 300 CW LiDARMeasurement height (configurable) 10 m – 300 m
Probe length at 10 m 0.07 m
Probe length at 100 m 7.7 m
Number of simultaneous heights measured Up to 10
Sampling rate 50Hz
Average period (configurable) 1 second upwards
Scanning cone angle 30°
Wind speed accuracy < 0.5%
Wind speed range < 1 m/s to 70 m/s
Wind direction accuracy < 0.5°
Various additional sensors are available on request, including
but not limited to:
Oceanographic SensorsWave height and direction
Surface current velocity and direction
Water temperature
Conductivity / Salinity
Current profile
CTD profile
Meteorological SensorsWind speed/direction
Air pressure
Air temperature
Humidity
Precipitation
Solar radiation
Water Quality Sensors Dissolved oxygen
Light attenuation
Chlorophyll-a
Hydrocarbon
Turbidity1 - With fuel cells and methanol cartridges
2 - All values are nominal ratings
3 - The buoy consumes roughly 150 Ah per day. Exact power
consumptions will be made for each case
14Bl�tterA4-SES2000-3plus.FH10 27.02.2014 8:44 Uhr Seite 10
www.innomar.com
-
-
---
-
-
-
--
--
Performancewater depth range:SBM: 0.5 – 500 mQBM: typically < 20 m(depends on array geometry)sediment penetration:SBM: up to 50 mQBM: up to 20 mlayer resolution: up to 5 cmmotion compensation: heavebeam width @ 3 dB for all frequencies:SBM: ± 1.5° / footprint < 5.5 % of water depthQBM: ± 2.5° / footprint < 9.0 % of water depth
Transmitterprimary frequencies:approx. 100 kHz (band 85 – 115 kHz)secondary low frequencies:4, 5, 6, 8, 10, 12, 15 kHz (band 2 – 22 kHz)primary source level:SBM: > 242 dB//µPa re 1 mQBM: > 236 dB//µPa re 1 mpulse width: 0.07 – 1 mspulse rate:SBM: up to 60/sQBM: up to 15/s per transducermulti-ping mode (SBM)pulse type: CW, Ricker
System Componentstransceiver unit 19 inch / 6 U(WHD: 0.52 m x 0.30 m x 0.40 m; 32 kg)transducer excl. 20 m cable(WHD: 4 x [0.21 m x 0.06 m x 0.21 m];4 x 5 kg)system control: internal PC
SoftwareSESWIN data acquisition softwareSES Convert SEG-Y/XTF data exportSES NetView remote displayISE post-processing software3D volume renderer
Power Supply Requirements100 – 240 V AC / 50 – 60 Hzpower consumption: < 350 W
-
-
-
-
-
-
-----
--
Screenshot of the operating software
Transducer (QBM)
Top-side unit
SES-2000 quattro Parametric Sub-bottom Profiler
single beammode (SBM)
dual beammode (DBM)
quattro beammode (QBM)
14Bl�tterA4-SES2000-3plus.FH10 27.02.2014 8:44 Uhr Seite 11
www.innomar.com
Wismar Bay echo plot example and 3D volume rendered area with embedded circular structureFrequency 10 kHz, pulse length 100 µs, profile length 40 m (3D volume: 40 m x 40 m x 3 m)